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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2021 · Paper I, General Studies · Q67 of 120

Geo-Scientist Prelims 2021 General Studies Q67: Which one of the following waves has the longest wavelength?

QuestionPhysics / electromagnetic spectrum

Which one of the following waves has the longest wavelength?

  1. (a) Visible light
  2. (b) Ultraviolet radiation
  3. (c) Infra-red radiation
  4. (d) X-rays

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